2022TLG7921MV2Product Specification
CHLOE SUN| [Company address]
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Table of contents
1 Overview ......................................................................................................................................... 6
2 Innovation ....................................................................................................................................... 63 Introduction .................................................................................................................................... 6
3.1 Features ..................................................................................................................................................... 7
3.2 Application ................................................................................................................................................ 74 Tech Inventory ................................................................................................................................ 8
4.1 TLG7921MV2 Overview ........................................................................................................................ 8
5 Key Component Introduction ....................................................................................................10
5.1 AM3352....................................................................................................................................................105.1.1 General Description .................................................................................................................10
5.1.2 Feature Introduction ...............................................................................................................105.1.3 Block Diagram ............................................................................................................................105.2 KIWI TLM992 ..........................................................................................................................................115.2.1 General Description .................................................................................................................115.2.2 Feature Introduction................................................................................................................115.3 EC25 Series LTE Module ......................................................................................................................125.3.1 General Description .................................................................................................................125.3.2 Features Introduction ..............................................................................................................125.4 NEO-M8Q-0 ............................................................................................................................................135.4.1 General Description .................................................................................................................13
5.4.2 Features Introduction ..............................................................................................................13
6 Power .............................................................................................................................................14
6.1 POE Power Adapter ..............................................................................................................................147 Antenna .........................................................................................................................................14
7.1 LoRa Antenna .........................................................................................................................................147.1.1 Specification ...............................................................................................................................14
7.2 LTE Antenna ............................................................................................................................................15
7.2.1 Specification ...............................................................................................................................15

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27.3 GPS Antenna ...........................................................................................................................................15
7.3.1 Specification ...............................................................................................................................15
8 Mechanical Design .......................................................................................................................16
8.1 Physical Appearance & I/O .................................................................................................................168.2 I/O Description.......................................................................................................................................17
8.3 Mechanism .............................................................................................................................................17

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Table of Figures
Figure 1 AM335x Functional Block Diagram ...................................................................................10Figure 2 KIWI TLM992 8CH LoRa Module .......................................................................................11Figure 3 EC25 Series LTE Module........................................................................................................12Figure 4 NEO-M8Q-0 GPS Module .......................................................................................................13Figure 5 Physical Appearance & I/O ...................................................................................................16Figure 6 2D Drawing .................................................................................................................................17

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Version HistoryVersion1.0
1.1

Change Description
Initial Version
Fine-tune format and content. Added key component
introduction, Chapter 5.4 .

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Owner
Chloe

Release date
2022/02/16

Chloe

2022/5

1 Overview
This document describes Gateway TLG7921MV2 architecture and requirements. This document
covers HW, RF, ME and Software requirements.

2 Innovation
TLG7921MV2 is a high performance LoRaWAN™ gateway designed for outdoor application that supports
LoRaWAN Class A/B/C. TLG7921MV2 is a gen-2 outdoor gateway in Kiwi, it stands on the TLG7921M
series, keeps all the properties including support LoRaWAN Class A/B/C, IP67, and all popular network
communication interfaces. It adopts the new generation LoRa chip SX1302 to reduce power
consumption. Moreover, the 2Tx/2Rx characteristic offers a bigger throughput performance.

3 Introduction
TLG7921MV2 is defined an industrial base station and perform robust mechanical and IP67 waterproof
design to provide the perfect solution to complex environments. The gateway integrates an industrial
level CPU ARM Cortex-A8 core and two Semtech SX1302 to communicate with the LoRa nodes in thenetwork that supports listening on 16 channels and channel accessing with Listen-before-Talk (LBT). Thepower supply is by POE (Power over Ethernet). TLG7921MV2 provide LTE 4G and Ethernet to connect
the cloud server. LoRaWAN™ network uses ISM band and Kiwi-tec has already offered different bands
for different regions. It’s the cost-effective solution for long range, and low power WAN systems.

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3.1 Features
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Long range transmission, could be almost 10Km (depends on the interference in the air)Frequency range: 920~928MHzHigh sensitivity: -137dBm@SF12
TX Power: 24dBm (for Japan)
10/100Mbps Fast Ethernet
Built-in splitter in system, and support POE (Power of Ethernet)
MQTT protocol
Web GUI for configuration and web management
Friendly FW upgrade through Web GUI
JavaScript programs plug-in by customers for special applications (customization)
Built-in Node-RED application development environment
Built-in LoRaWAN server support (Optional)

3.2 Application⚫
⚫
⚫
⚫

Smart city: smart campus, smart meter, smart parking lots and smart traffic monitoring
Smart agriculture and animal husbandry
Smart Industry: smart warehouse, smart transportation
Smart sensor applications

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4 Tech Inventory
4.1 TLG7921MV2 Overview
Product InformationName

TLG7921MV2

SoC

TI AM3352 (Cortex A8)

Operating Voltage

50V~54V POE (Power of Ethernet)

Operating System

Linux 4.1.6

Flash256 MBytes (NAND Type)

Memory512 MBytes (DDRIII)

Network Communication
LoRa ModuleSemtech SX1302

LoRa Frequency Range

920~928MHz for JPN

LoRa Data Rate

0.018~62.56Kbps

LoRa Transmit Power+22 dBm

LoRa Sensitivity-137 dBm@0.018Kbps

LTE Module

Quectel EC25 series

LTE Frequency Range[Japan]LTE FDD: B1/B3/B8/B18/B19/B26
LTE TDD: B41
WCDMA: B1/B6/B8/B19

LTE Data Rate

Downlink/Uplink
14.4Mbps/ 5.76Mbps (Max. )GNSS

GPS/GLONASS

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8Ethernet10/100Mbps fast Ethernet

I/OInterface

N-Type connector x 4 (for LoRa antenna*2, GPSantenna*1 & LTE antenna*1 use)
SIM card connector x 1
POE connector x 1

Power input

PoE (up to 57V) input

Mechanism
Dimension

220 X 270 X 60 mm (without the connector)

Weight (w/o accessories)

2.4 KG

Accessories in package

6.5 KG

Environmental
Operation Temperature-40 ~ 70 °C

Storage Temperature-40 ~ 80 °C

Certificate

TELEC / VCCISoftware Specification
Administration Portal

Support Chrome or Firefox

Discovery Tool

Windows 7 or above

M2M Protocol

MQTTPacket Forwarder

Compatible with ANNWS.01.2.1.W.SYS Gateway to ServerInterface

Firmware Upgrading

Support Online Upgrading through Web browser

Network Configuration

Support DHCP, Static IP and DHCP Server

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5 Key Component Introduction
5.1 AM3352
5.1.1 General Description
The AM335x microprocessors, based on the ARM Cortex-A8 processor, are enhanced with image,graphics processing, peripherals and industrial interface options such as EtherCAT and PROFIBUS. Thedevices support high-level operating systems (HLOS).

5.1.2 Feature Introduction
Processor
CPU ModelAM3352(TI)

CPU

Up to 1-GHz Sitara™ ARM® Cortex®-A8 32‑Bit RISC
Processor

CPU Frequency

1-GHz

5.1.3 Block Diagram

Figure 1 AM335x Functional Block Diagram

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5.2 KIWI TLM992
5.2.1 General Description
Follow LoRa® Corecell gateway reference design is a complete gateway turnkey solution reference
design provided for US, EU ISM bands. The reference design is based on SX1302 and SX1250 anddedicated to applications.

5.2.2 Feature Introduction
Key Feature
Tx power+27 dBm(maximum)

Data rate

0.292~21.875 kbps
Receive 8 LoRa® channels multi-data rates (SF5 ~ SF12 /125 Simultaneously kHz) + 2 mono-data rate (LoRa® 250/ 500 kHz and FSK 50 kbps)

Sensitivity-127 dBm at SF7 BW 125 kHz-138 dBm at SF12 BW 125 kHz-111 dBm at FSK 50 kbps

Figure 2 KIWI TLM992 8CH LoRa Module

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115.3 EC25 Series LTE Module
5.3.1 General Description
EC25 is a series of LTE-FDD/LTE-TDD/WCDMA/GSM wireless communication module with receive
diversity. It provides data connectivity on LTE-FDD, LTE-TDD, DC-HSDPA, HSPA+, HSDPA, HSUPA, WCDMA,EDGE and GPRS networks. It also provides GNSS1) and voice functionality2) for customers’ specificapplication. EC25 contains seven variants: EC25-E, EC25-A, EC25-V, EC25-J, EC25-AU, EC25-AUT, EC25AF and EC25-AUTL. Customers can choose a dedicated type based on the region or operator.

5.3.2 Feature Introduction
Key Features
Power Supply

Supply voltage: 3.3V~4.3V
Typical supply voltage: 3.8VDimension(29.0±0.15)mm × (32.0±0.15)mm × (2.4±0.2)mm

Weight (w/o accessories)

Approx. 4.9 G

LTE band*Quectel EC25 series, default for JPN
LTE FDD: B1/B3/B8/B18/B19/B26
LTE TDD: B41
WCDMA: B1/B6/B8/B19
LTE-M compatible (detail spec shall be updated)

RoHS

All hardware components are fully compliant with EU RoHS
directive

Products typeMini-PCIE*Note: Customers can choose a dedicated type based on the region or operator.

Figure 3 EC25 Series LTE Module
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5.4 NEO-M8Q-0
5.4.1 General Description
The NEO-M8 series utilizes concurrent reception of up to three GNSS systems (GPS/Galileo together withBeiDou or GLONASS), recognizes multiple constellations simultaneously and provides outstanding
positioning accuracy in scenarios where urban canyon or weak signals are involved. For even better andfaster positioning improvement, the NEO-M8 series supports augmentation of QZSS, GAGAN and IMES
together with WAAS, EGNOS, and MSAS. The NEO-M8 series also supports message integrity protection,geofencing, and spoofing detection with configurable interface settings to easily fit to customer
applications. The NEO form factor allows easy migration from previous NEO generations.

5.4.2 Feature Introduction
Key Features
Power Supply

2.7V～3.6V

Interface

-UART
-USB
-SPI-DDC（I2C compliant）

Grade

Support AEC-Q100

Navigation Sensitivity-167 dBm

Concurrent reception of up to 3 GNSS (GPS, Galileo, GLONASS, BeiDou)
Security and integrity protection
Supports all satellite augmentation systems
Advanced jamming and spoofing detection

Figure 4 NEO-M8Q-0 GPS Module
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136 Power
6.1 POE Power Adapter
Key Features
Model

POE29U-560-R

AC Characteristic

AC Input voltage rating: 100VAC to 240V / 47Hz to 63Hz
Output Voltage: 56V DC +1V / -2V (54V to 57V Range)

Mechanical5.51 inch (140 mm) length2.55 inch (65 mm) width
1.42 inch (36 mm) height

7 Antenna
7.1 LoRa Antenna
7.1.1 Specification
Specification
Model name

OMA-G01

Type

Omnidirectional

Frequency range

902 ~ 928 MHz

Peak Gain

8.0 dBi

Material of Radiator

Fiberglass

VSWR1.5Impedance

50 Ohms

Connector

N-type jackDimension

Length: 51.6” / 131 cm
Phi: 1.5~2.0 cm

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Wind Load120 mph

7.2 LTE Antenna
7.2.1 Specification
Specification
Model name

DR-OM18-05002

Type

Omnidirectional

Frequency range

698 ~ 960 MHz
1400~1500 MHz
1710 ~ 2690 MHz

Peak Gain

3.0 dBi

Material of Radiator

Fiberglass

VSWR

3Impedance

50 Ohms

Connector

N plugDimension

Length: 235 mm
Phi: 27 mm

7.3 GPS Antenna
7.3.1 Specification
Specification
Model name

DS1600-0708WNMFrequency range

1550~1650 MHz

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Peak Gain

4.4 dBi

Material of Radiator

Fiberglass

VSWR

2Impedance

50 OhmsConnector

N MaleDimension

Length: 300 mm
Phi: 18 mm

8 Mechanical Design
8.1 Physical Appearance & I/O

Figure 5 Physical Appearance & I/O

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8.2 I/O Description⚫ N-Type connector x 4 (for LoRa antenna*2, GPS antenna*1 & LTE antenna*1 use)
⚫ SIM card connector x 1⚫ POE connector x 1

8.3 Mechanism
Unit: mmFigure 6 2D Drawing

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